This listing is for an reproduction GM A-Body guide plate at the center of the door glass on 1970 1971 1972 GM A Body 2 door hardtop cars. It bolts to the plate on the glass and guides glass on the vertical tube mounted in the door shell. Fits Chevelle, Monte Carlo, Cutlass, Lemans, Grand Prix and Skylark 2 door hardtop and convertible models. See pictures